Wf. Chiou et al., INHIBITORY EFFECT OF DEHYDROEVODIAMINE AND EVODIAMINE ON NITRIC-OXIDEPRODUCTION IN CULTURED MURINE MACROPHAGES, Journal of natural products, 60(7), 1997, pp. 708-711
Possible antiinflammatory effects of dehydroevodiamine (1) and evodiam
ine (2) were examined by assessing their effects an NO production in t
he murine macrophage-like cell line RAW 264.7. The results indicated t
hat both 1 and 2 inhibited the IFN-gamma/LPS-stimulated NO production
in a concentration-dependent manner. However, 1 appeared to inhibit NO
production by interfering not only with the priming signal initiated
by IFN-gamma but also with iNOS protein synthesis, while 2 affected th
e former only.